Stamp Out Dogmatism

"A good way of ridding yourself of certain kinds of dogmatism is to become aware of opinions held in social circles different from your own."
"If you cannot travel, seek out people with whom you disagree, and read a newspaper belonging to a party that is not yours. If the pople and the newpaper seem mad, perverse, and wicked, remind yourself that you seem so to them. In this opinion both parties may be right, but they cannot both be wrong. This reflection should generate a certain caution."
Bertand Russell:
An Outline of Inetllectual Rubbish